You might use combinations of bare-metal machines and cloud machines (virtual servers). Hardware configuration depends upon your game’s requirements and you usually need to try different configurations to find what’s right for your game.
For guidance on setting up machine resources, see:
Orchestration: Allocations - Documentation on machine resource allocations (how to set up hardware configuration).
Orchestration: Scaling rules - Your settings on how to allocate bare-metal machines or cloud machines to your game’s hosting provision, and add or remove them as the game server workload changes.
Concepts: Payload scaling - An example implementation of payload scaling on machine resource (bare metal machines or cloud machines).
For guidance on the cost of bare-metal machines and cloud machines, see: